Wrench



J M170 ye Oct. 9, 1934. .1. w. DOEGE WRENCH Original Filed Dec. 29, 1932 Patented @ct. llhd i acetate anon John W. Doege, (Cedar Iitapids, llowa Application illecemher at, rest, Serial No. stoma Renewed March h, 1934.

2 Claim.

This invention relates to wrenches, and it is an object of the invention to provide a wrench having means wherein the jaws may be quickly adjusted one with respect to the other in accord- 55 ance with the character of the work with which the wrench is to be used.

Another object of the invention is to provide a wrench wherein the shank has slidably mounted thereon a member or block which is operatively m engaged with the sliding jaw to provide means for quickly adjusting the sliding jaw with respect to the stationary jaw and wherein said block carries means coacting with the shank for locking the block in its difierent selective adjust- 15, ments along the shank.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved wrench whereby certain important advantages are at- 25 tained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawing, wherein:-

Figure l is a view partly in elevation and partly in section of a wrench constructed in accordance with an embodiment of my invention;

Figure 2 is a sectional view taken substantially on the line 2-2 of Figure 1;

Figure 3 is a sectional view taken substantially on the line 3-3 of Figure 1.

As disclosed in the accompanying drawing, 1 denotes an elongated shank of desired dimensions carrying a stationary jaw 2. Operatively an engaged with the shank 1 for movement freely therealong is a sliding jaw 3 for coaction with the stationary jaw 2, and also slidably mounted upon the shank 1 but outwardly of the jaw 3 is a block or member 4.

As particularly illustrated in Figure 1, this block l has in threaded engagement therewith a shank 5 which is also in swiveled connection, as indicated at 6, with the sliding jaw 3. The shank 5 between the jaw 3 and the member or 50 block 4 carries a knurled head 7 providing means whereby the shank may be readily and conveniently rotated as desired to move the jaw 3 toward or from the jaw 2 as may be required in order to effect a fine adjustment of the jaws one 55 with respect to the other.

(C1. fill-4.34)

Opposed faces of the shank 1 are flat and each of said flattened faces is provided along a major portion of this length with a longitudinal series of ratchet teeth 8, the beveled faces of which being disposed toward the outer or handle end portion of the shank 1.

These teeth 8 are also depressed within the shank 1 so that such teeth will ofier no hinderance or obstruction to the desired sliding movement or the jaw 3 as well as the member or block a.

The outer end portion of the member or block 4 is provided in opposite side walls thereof with the openings 9 which afiord direct communication with the teeth 8 arranged along the opposite faces of the shank 1 and the forward ends of the openings 9 are continued by the transversely disposed grooves 10 each opening through the inner edge face of the shank 1. The outer portions of the grooves 10 have their base walls 11 inwardly and outwardly inclined or in converging relation as particularly illustrated in Figure 2, the outer ends of said base walls 11 substantially meeting.

The teeth 8 have coacting therewith elongated holding lugs 12 disposed lengthwise of the inner ends of elongated arms 14. These lugs 12 are adapted to through the openings 9 and have engagement with the teeth 8 of the shank 1 to hold the member or block a and of course the jaw 3 against outward movement after the same have been initially adjusted toward the stationmy jaw 2. These arms 10, when the lugs 12 are engaged with the teeth 8, are substantially housed within the grooves 10 with their outer end'portions pivotally held by the pins 15 intersecting the outer portions of the grooves 10 and disposed through the arms 14. The outer or pivoted end portions of the arms 14 are continued by the outwardly disposed tail pieces or supplemental arms 16 and interposed between these pieces or arms 16 outwardly of the pivotal connections 15 is an expansible member 17 herein disclosed as a coil spring of sumcient tension.

This member or spring 17 serves to normally maintain the arms 14 within the grooves 10 with the lugs 12 engaged with the teeth 8 yet readily permitting the requisite outward or separating movement of the inner portions of the arms 14 and the lugs 12 as the member or block 4 together with the jaw 3 are moved along the shank 1 toward the jaw 2. To facilitate this movement the free longitudinal faces of the lugs 12 are beveled to correspond to the beveled faces of the teeth 8.

The pieces or supplemental arms 16 provide means adapted to be readily grasped between the fingers of a hand to eifect the desired separating movement of the inner portions of the arms 11 when it is desired to efi'ect an initial adjustment of the jaw 3 with respect to the jaw 2. The tail pieces or supplemental arms 16 in close proximity to the pivotal connections 15 for the arms 14 carry inwardly directed members 18 for contact with the adjacent portions of the base walls 11 whereby the extent of inward movement of each of the pieces or supplemental arms 16 is limited. These members 18 as herein disclosed constitute threaded shanks engaged with the pieces or supplemental arms 16 thus providing means whereby the extent of .outward swinging movement of the lugs 12 may be adjusted or regulated as desired.

While I disclose in the accompanying drawing a wrench of a well known monkey or nut type it is believed to be obvious that the jaws can be rearranged to provide a conventional pipe type of wrench.

From the foregoing description it is thought to be obvious that a wrench constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:-

1. A wrench comprising a shank having a stationary jaw, a block slidably mounted upon the shank, a second jaw movable with the block for coaction with the stationary jaw, opposed faces of the shank being provided therealong with a series of ratchet teeth, the block having openings affording communication with the teeth, said openings being continued by grooves opening through an edge face of the block, the outer portions of said grooves having their base walls converging outwardly, elongated arms extending inwardly of the block and having their outer portions pivotally mounted within the grooves, lugs carried by the inner portions of the arms to extend inwardly through the openings of the block for coaction with the teeth of the shank,supplemental arms extending outwardly from the pivoted end portions oi the first namedarms to provide means for separating the inner portions of the first named arms, an expansible member interposed between said supplemental arms for constantly urging the inner end portions of the first named arms inwardly to maintain the lugs normally in engagement with the teeth of the shank, and means carried by the supplemental arms for contact with the block for limiting the extent of separating movement of the inner portions of the first named arms.

2. A wrench comprising a shank having a stationary jaw, a block slidably mounted upon the shank, a second jaw movable with the block for coaction with the stationary jaw, opposed faces of the shank being provided therealong with a series of ratchet teeth, the block having openings afiording communication with the teeth, said openings being continued by grooves opening through an edge face of the block, the outer portions of said grooves having their base walls converging outwardly, elongated arms extending inwardly of the block and having their outer portions pivotally mounted within the grooves, lugs carried by the inner portions of the arms to extend inwardly through the openings of the block for coaction with the teeth of the shank, supplemental arms extending outwardly from the pivoted end portions of the first named arms to provide means for separating the inner portions of the first named arms, an expansible member interposed between said supplemental arms for constantly urging the inner end portions of the first named arms inwardly to maintain the lugs normally in engagement with the teeth of the shank, and inwardly disposed members carried by the supplemental arms for contact with the base walls of the grooves for limiting the extent of separating movement of the inner portions of the first named arms.

JOHN W. DOEGE. 

